<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<button class="btn">屠龙宝刀,点击就送!</button>





</body>
<script src="jquery.js"></script>
<script>
    $('.btn').click(function () {
        // var btnEle = $(this).clone(); // 不带参数的克隆不能克隆绑定的事件
        var btnEle = $(this).clone(true);
        $(this).after(btnEle);

    })

</script>


</html>